Hello everyone,
I was wondering about the example query "Average number of children per
year". When I try to parse this using OpenRDF, I get the error
"projection alias 'year' was previously used", in Jena "Variable
used
when already in-scope: ?year in ((str ?year) AS ?year)". This seems to
be in line with the sparql specifications.
However,
query.wikidata.org accepts it just fine. So I was wondering how
exactly this kind of situation is being resolved.
Greetings,
Adrian